noun
fish-breeding pond; fish farm pond
A pond used for raising or breeding fish, often in aquaculture or garden settings.
この養魚池では鯉を育てています。
We raise carp in this fish-breeding pond.
生け簀 is a fish preserve or live well, often a netted enclosure in natural water, whereas 養魚池 is an artificial pond for breeding.
Compound of 養魚 (fish farming) and 池 (pond).